btrfs-progs: move prefixcmp to utils

Signed-off-by: David Sterba <dsterba@suse.com>

2 files changed, 10 insertions, 9 deletions

diff --git a/btrfs.c b/btrfs.c
index 14b556b..cc70515 100644
--- a/btrfs.c
+++ b/btrfs.c
@@ -37,15 +37,6 @@ static inline const char *skip_prefix(const char *str, const char *prefix)
 	return strncmp(str, prefix, len) ? NULL : str + len;
 }
 
-int prefixcmp(const char *str, const char *prefix)
-{
-	for (; ; str++, prefix++)
-		if (!*prefix)
-			return 0;
-		else if (*str != *prefix)
-			return (unsigned char)*prefix - (unsigned char)*str;
-}
-
 static int parse_one_token(const char *arg, const struct cmd_group *grp,
 			   const struct cmd_struct **cmd_ret)
 {
diff --git a/help.c b/help.c
index 1afc09d..c8bb720 100644
--- a/help.c
+++ b/help.c
@@ -259,3 +259,13 @@ void help_command_group(const struct cmd_group *grp, int argc, char **argv)
 
 	usage_command_group(grp, full, 0);
 }
+
+int prefixcmp(const char *str, const char *prefix)
+{
+	for (; ; str++, prefix++)
+		if (!*prefix)
+			return 0;
+		else if (*str != *prefix)
+			return (unsigned char)*prefix - (unsigned char)*str;
+}
+